Any dot 5.1 brake fluid should be good mate, but as above id sort out the braking, decent pads, dot 5.1 fluid and some braided brake lines. You dont wanna be like me at llandow 2 or 3 years ago and used standard pads and brake fluid i dont think was ever changed haha, did 2 laps and had no brake pedal it made my whole day crap. Also some stiff suspension id say would be ideal as i had whiteline lowering springs an il let the picture do the talking. No body roll at all lol